baber/WOPTO huggingface dataset:
Patent GB-1343631-A (GB)
Title: Brushes for electrical machines
IPC: H01R39/26
Filed: 1971-04-19
Abstract: 1343631 Brushes for dynamo-electric machines LE CARBONE-LORRAINE SA 19 April 1971 [28 Jan 1970] 20353/71 Heading H2A An electrical machine brush carries a member of insulating material projecting from a side face of the brush and constituting a brush stop. In Fig. 1b the member is a bar 1 glued in a groove of trapezoidal cross-section in the top of the brush 3 and projecting at both ends. In Fig. 3 the member comprises a cylindrical portion 9 which is inserted into a bore in a side face of the brush, being retained by a holding rib 11, and a projection 10. The stop may comprise a polyamide.
Patent GB-739302-A (GB)
Title: Improvements in and relating to magnetrons
IPC: H01J25/54
Filed: 1953-07-22
Abstract: 739,302. Magnetrons. GENERAL ELECTRIC CO. July 22, 1953 [July 25, 1952], No. 20363/53. Class 39 (1). In a magnetron with number of active resonant anode segments facing one part of the cathode and a neutral anode segment connected to a point of zero high frequency voltage facing circumferentially another part of the cathode, the ratio of cathode radius to anode radius is higher for the region of the space charge chamber defined by the active segments and lower for the region defined by the neutral segment. Space charge bunches are debunched in the neutral region and formed afresh in the active region. In a magnetron, Fig. 1, with anode segments 5 connected to a one and a half turn spiral loop 4 terminating a transmission line 2, 3 as described in Specification 655,041, and with a neutral anode segment 6 as described in Specification 657,487, the cathode comprises a non-emissive portion 8 of greater radius facing the anode segments 5, and an emissive portion 7 of lower radius facing the neutral electrode 6. Adjacent anode segments are connected to different turns of the loop. The cathode portions 7 and 8 need not be separate as shown, and may comprise a single member of oval or eggshaped cross-section having an internal heater, Fig. 3 (not shown). The cathode may comprise two contacting cylinders of larger and smaller diameters. In another modification, Fig. 4, the cathode 26 has a circular cross-section, but the neutral electrode 28 has a portion 29 of relatively large radius. The portion 29 may be a plane surface.
Patent GB-790071-A (GB)
Title: Improvements in and relating to compression-ignition engines
IPC: F02B3/00
Filed: 1955-07-14
Abstract: 790,071. Compression ignition engines. MASCHINENFABRIK AUGSBURGNURNBERG AKT.-GES. July 14, 1955 [July 24, 1954], No. 20385/55. Class 7(3) In a high speed diesel engine fuel is injected by a nozzle 2 against the wall of the combustion chamber in such a way as to produce a fuel film 4 and water is injected by a nozzle in the same way as the fuel to form a water film on the wall: The air is given a rotary motion. As shown there are two nozzles 6, 7, each of which forms a water film on the wall of the combustion chamber. The combustion space is preferably arranged in the piston and has the shape of a body of revolution. The fuel and water films may occupy separate areas on the combustion chamber wall or a water film may be merged at least partly with the fuel film. Specification 749,825 is referred to.
Patent GB-1518230-A (GB)
Title: Smoke catalyst assembly for a pyrolytic self-cleaning ove
IPC: F23G7/07
Filed: 1976-05-18
Abstract: 1518230 Catalyst assembly SOC ANON COMPAGNIE EUROPEENNE POUR L'- EQUIPEMENT MENAGER 18 May 1976 [30 May 1975] 20423/76 Heading B1F A smoke catalyst assembly for a pyrolytic self-cleaning oven. comprises a heating resistor 2 disposed at the periphery of a palladium oxide catalyst 1 outside the path of the smoke 8, so as to avoid carbon deposits on the heating resistor.
Patent GB-404671-A (GB)
Title: Improvements in and relating to incubators
IPC: A01K41/00
Filed: 1932-07-19
Abstract: 404,671. Hatching-appliances. BRIDGE, J. W., Coptrod Hatcheries, Lower Healey, Rochdale. July 19, 1932, No. 20438. [Class 5 (ii).] In an incubator of the type in which quantities of eggs are placed in trays stacked within a container or casing, through which air is circulated, and which is provided with means for controlling the air, temperature and moisture conditions prevailing therein and in which an air circulating fan is mounted to rotate between two groups of egg trays which are supported in superposed relationship in such manner that of each tray a longitudinal axis at least is horizontal, thus permitting air displaced by the fan to flow easily and freely over eggs in the trays, some or all of the trays are mounted within the casing in such manner that they may be tilted simultaneously from the horizontal, each about a horizontal longitudinal axis extending at right angles to the general plane of the fan, through an angle of substantially 45‹. A fan 18, Fig. 3, rotates between a group of stationary hatching trays 14 mounted in racks 12 and throe groups of incubating trays 15 mounted in racks 13 which may be tilted simultaneously by means of worm gearing, not shown, the racks 13 being interconnected by a bar 58. A pipe 21 provided with an adjustable shutter 30 and terminating beneath the fan 18 serves as an air inlet and as an overflow from a water pan 22 which is supplied through an overflow 25 from a pan 24 itself supplied through a pipe 26 from a tank 27 with drip-feed regulation. An electric heating element or elements is or are mounted between the pans 22, 24. Air leaves the incubator through pipes 29. In a modification, Fig. 4, fans 50 rotate between groups 49 of tilting incubating trays : if desired, a portion 51 of one wall may be re-entrant and hatching trays 52 may be provided, although hatching is preferably carried out in a separate fan-ventilated incubator. The fan blades may be of 90‹ angle section. According to the Provisional Specification, steam or other heating means may be employed.
Patent GB-376033-A (GB)
Title: Process of manufacturing rubber-containing coverings
IPC: E01C7/30
Filed: 1931-07-21
Abstract: Rubber-containing compositions for floor-coverings, road surfaces, &c. are made by adding finely-divided, non-colloidal fillers having substantially no water-absorbing properties, to wholly or partly vulcanized latex.  Aqueous dispersions of bitumens may be incorporated with the latex before the fillers are added.  The composition may be poured, sprayed, &c. directly on the surface, or may be made into sheets &c. and cemented to the base, e.g. by a rubber solution.  According to an example, 100 parts of vulcanized latex containing 30 parts of rubber and 2 parts of sulphur, are mixed with 20 parts of a 50 per cent aqueous asphalt dispersion.  30 parts of asbestine, 20 parts ground limestone, and 3 parts of chromic oxide made into a paste with water are added, and the mixture is poured on to a base to form a layer 3 mm. thick.  The base may be previously coated with an adhesive, such as a solution of rubber or casein. Other fillers specified are barytes, iron oxide, antimony pentasulphide. Specifications 278,395, [Class 70, Indiarubber &c.], and 313,433, [Class 22, Cements &c.], are referred to.
Patent GB-777582-A (GB)
Title: Improvements in or relating to pressure chargers for internal combustion engines
Inventor: FEILDEN GEOFFREY BERTRAM ROBER
IPC: F02C6/12
Filed: 1954-09-17
Abstract: 777,582. Centrifugal blowers; gas turbines. RUSTON & HORNSBY, Ltd. Aug. 29, 1955 [Sept. 17, 1954], No. 20893/54. Classes 110 (1) and 110 (3). [Also in Group XXIV] A turbine driven supercharger for an I.C. engine in which a cartridge houses and forms the bearings for a shaft common to the turbine and compressor rotors and forms with the shaft a unitary sub-assembly for longitudinal insertion and withdrawal from a casing, has the cartridge split in an axial plane into two substantially semi-cylindrical halves to enable access to be had to the shaft when the subassembly is withdrawn. An I.C. engine supercharger comprises a main casing 11 forming a cooling water jacket 14 surrounding a turbine inlet volute 15 and part of a compressed air outlet volute 16. The casing 11 is in one piece. A turbine outlet diffuser 20 is bolted on one side of the casing and on the other side is bolted an air inlet duct 18 which includes a part 17 completing the compressed air outlet volute 16. The turbine rotor 43 and the compressor rotor 21 are mounted upon a common shaft 23 by means of bolts 24, 27. Pins 25 and 28 engage the rotors 43, 21 and flanges 26, 29 formed integral with the shaft 23. The shaft 23 is mounted within a housing 30 on bearings 31, 32 which are lubricated through passages 33, 34. A large hole 35 allows the oil to drain freely into the well 36 and away through passage 37. A passage 38 allows cooling air to flow from the compressor to cool the turbine rotor. The housing 30 and bearings 31, 32 are in two parts so as to facilitate access to the shaft 23 when the housing and shaft are withdrawn from the casing 11. The housing is secured to the casing 11 by a disc 39 which is fixed to the casing by bolts 41 and to the housing by bolts 40. Sealing rings 42 prevent the leakage of oil. To dismantle the equipment, the outlet diffuser 20 is first removed. The turbine rotor is then removed from the shaft and the bolts 40 released. The air inlet casing 18 is then unbolted and removed. The housing 30, shaft 23 and compressor rotor 21 can then be removed axially.
Patent GB-320660-A (GB)
Title: Improved means for removing solids or liquids by suction
IPC: F17D3/16
Filed: 1928-07-19
Abstract: 320,660. Morris Commercial Cars, Ltd., and Ward, J. L. D. July 19, 1928. Direct air-pressure apparatus, non-automatic; vacuum apparatus. - Apparatus for removing liquids and solids, such as naphthalene, from gas mains, comprises a chamber 2 adapted to be exhausted by a pump 1, and then connected by a pipe 3 to the gas main. During the exhaustion of the chamber 2 the valve 17 on the pipe 3 is closed. The materials may be discharged from the chamber 2 through pipes 6, 18 into receivers 9 by connecting the delivery side of the pump 1 to the chamber and forcing in compressed air. The apparatus is mounted on a motor lorry &c., the pump being driven from the lorry engine. Specifications 2244/01 and 6919/04 are referred to.
Patent GB-579391-A (GB)
Title: Improvements in or relating to valves
IPC: F16K41/00
Filed: 1943-12-14
Abstract: 579,391. Valves. PACKLESS METAL PRODUCTS CORPORATION. Dec. 14,1943, No. 20955. Convention date, Dec. 18, 1942. [Class 135] [Also in Group XXVI] A valve comprises a ported thin resilient sleeve 31 fitted in a bore having inlet and outlet ports 13, 15. The valve is rotated by a hand wheel 36 attached to a threaded spindle screwed into the cover. The sleeve 31 is expanded by fluid pressure to prevent leakage and a spring-pressed washer 40 -engages the end to maintain contact with the bore. A collar 32 has a thin resilient sleeve 33 formed on it which is also pressed against the bore 12 by leakage fluid pressure and a spring-pressed washer 41.. In a modification, the ports 13, 15 are in line and the sleeve has two ports and access is arranged from the inlet port to the interior of the sleeve to maintain sealing pressure ; in this constructure the spindle is not threaded. Specification 564,892, [Group XXVIII], is referred to.
Patent GB-201408-A (GB)
Title: A portable apparatus for the complete technical analysis of coal gas or the like combustible gases
IPC: G01N7/08
Filed: 1922-08-01
Abstract: 201,408. Macdonald, D. M. Aug. 1, 1922. Gas analysis; burettes and pipettes.-In a portable apparatus of the Orsat type for the complete analysis of coal gas and like combustible gases, (1) the burette is centrally placed to reduce errors due to the capillary; (2) the graduation and the dimensions of the burette are selected with a view to enabling a comparatively large portion of the gas to be taken for explosion; (3) both water and mercury are used as confining agents, the explosion occurring over mercury in a vessel having a shape and dimensions stated to reduce the speed of the explosion; and (4) the capillary is of ¢ mm. bore. (1) The burette M is connected to the middle one of the seven branches leading from the capillary C, and is centrally placed with respect to the absorption pipettes PI P2, P3, and the explosion vessel X. (2) The bulb at the top of the burette has a capacity of 70 cc. and is graduated in ¢ cc.; the stem portion has a capacity of 50 cc. and is graduated in 1/20 cc., the final reading of 120 cc. being just above the lower cork of the waterjacket J. (3) The water reservoir WL operates the absorption pipettes P1, P2, P3, but the explosion vessel X is operated by means of the mercury reservoir ML. The operation of the apparatus is described.
Patent GB-298321-A (GB)
Title: A new or improved method of, and means for, supporting coffin handles, door knockers, or the like from their base members
IPC: A47B95/02
Filed: 1927-08-10
Abstract: 298,321. Hipkiss, A. C. Aug. 10, 1927. Handles. - A drop handle comprises a pivoted member 5 and a back plate 1 connected by a loop 7 of half-round wire, the ends of which pass through the back plate and are splayed abroad and non-rotatably held in a recess 11 or between projections on the back plate.
Patent GB-688861-A (GB)
Title: Improvements in or relating to laminated magnetic cores for single phase transformers
IPC: H01F27/245
Filed: 1950-08-25
Abstract: 688,861. Transformers. GENERAL ELECTRIC CO., Ltd., and HALLIDAY, D. May 11, 1951 [Aug. 25, 1950], No. 21123/50. Class 38 (ii). A single-phase shell type laminated transformer core has a central limb 1 of regular hexagonal crosssection, and each lamination layer comprises plates of two different sizes which are the same for all layers. The yokes 3 joining the winding limb 1 with limbs 2 may be equi-spaced as shown, or in a modification, not shown, two may be adjacent each other and spaced 120 degrees from the third.
Patent GB-501644-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03H7/01
Filed: 1937-07-30
Abstract: 501,644. Impedance network. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Radio Corporation of America). July 30, 1937, No. 21163. [Classes 40 (iii) and 40 (v)] A filter comprises two tuned circuits reactively coupled over two paths which operate in phase opposition, means being provided to correct for the power factors of the circuits so that an undesired frequency is completely eliminated. The filter is described as applied to an intermediate frequency amplifier. The tuned circuits 15, 16, Fig. 1, and 17, 18, 19 are coupled inductively by the mutual inductance M and capacitivoly by condenser C. A resistance R modifies the phase of the signal transferred over M so that, at a frequency 10 kc./sec. off the frequency to which the two circuits are tuned, it is in exact phase opposition to the signal transferred over C; the attenuation characteristic is as shown in Fig. 2. The output circuit of valve 12 comprises a second filter substantially identical with that in its input circuit, but having an attenuation characteristic as shown in Fig. 3, so that the amplifier as a whole has a characteristic as shown in Fig. 4. A switch 33 allows the coil 18 to be shortcircuited to broaden the pass-band for highfidelity reception, a similar switch being incorporated in the output circuit filter. The two filters may be combined into one network, Fig. 8 (not shown). A series of such filters may be used to produce infinite attenuation at several frequencies. Fig. 11 (not shown). The various circuits may be tuned by variation of an iron core of the inductances instead of by adjustment of capacity, Fig. 10 (not shown).
Patent GB-879769-A (GB)
Title: Improvements in or relating to matched metal die moulds for reinforced synthetic resins
Inventor: JOHN WILLIAM HAYDN THOMAS
IPC: B29C43/36
Filed: 1957-07-04
Abstract: A reinforced thermo-setting synthetic resin article is moulded by positioning resin-impregnated cloth or other reinforcing material between two matching male and female mould forms, at least one of which is of deformable sheet metal, applying mechanical pressure to the periphery of the mould constituted by said forms to close the mould, providing the desired moulding pressure by applying fluid pressure to the sheet metal form or forms, and curing the resin. Preferably both mould forms are of sheet metal and each constitutes a wall of an oil filled chamber to which pneumatic pressure may be applied.  Each form may have peripheral corrugations mating with corresponding corrugations on the other form.  Alternatively the deformable sheet metal form is mounted in an aperture in a stout metal plate forming a wall of a pressure vessel.
Patent GB-1514365-A (GB)
Title: Apparatus for transporting cylindrical steel articles
IPC: B65G11/20
Filed: 1976-05-21
Abstract: 1514365 Braking articles during conveying HITACHI Ltd and SUMITOMO METAL INDUSTRIES Ltd 21 May 1976 [23 May 1975 (2)] 21193/76 Heading F2E Steel pipes 9 rolling down inclined tracks 1, la (Fig. 4a) are braked electromagnetically, the tracks being connected by an iron core 5 carrying an excitation winding 6 for cyclically producing magnetic flux in a path which includes the pipes. The braking force exerted by the tracks may be supplemented by pivoted members 10 which are magnetically attracted into contact with the pipes to produce frictional retardation as the pipes pass over them as well as a supplemental electromagnetic force. A preferred operating cycle is shown in Figs. 11a to 11c. An exciting voltage V M  is applied to the winding as a pipe 9 approaches a pair of members 10 and is maintained for a period T 1  during which the forces referred to above decelerate the pipe to a stop, or nearly so. At this point the pipe will be in contact with the ends of members 10 (Fig. 5c). The excitation voltage is then removed, for period T 2 , and subsequently reapplied at a lower value and in the opposite sense for period T 3  to allow the pipe to accelerate towards the next set of members 10, the cycle being repeated after a further period T 4 . The Specification develops relationships between the diameter, wall thickness and weight of the pipes and the current required to brake them and describes in detail electric circuitry for producing alternative excitation levels of the above described pattern. A keyboard is provided for selecting the appropriate level.
Patent GB-955371-A (GB)
Title: Improvements in encapsulated coils for electro-magnetic induction devices and methodof making such coils
IPC: H01F27/32
Filed: 1962-06-01
Abstract: 955,371. Transformers. GENERAL ELECTRIC CO. June 1, 1962 [June 5, 1961], No. 21205/62. Heading HIT. A cavity is formed round a winding of a transformer or inductor during encapsulation and the cavity is then filled with fluid dielectric. In Fig. 2, 14, 16 are core members and 22 is the low voltage winding having inter-layer insulation 34 and leads 26. The open side of former 28 which carries high voltage winding 20 is closed by film 36 which may be of glass reinforced polyester. Tubes 40 are sealed through holes in the ends of the former and the winding assembly is then encapsulated in material 38. The cavity formed around winding 20 is evacuated through one of the tubes and a fluid dielectric is fed through the other tube, both tubes being sealed on completion of the impregnation. A flexible expansion chamber may be provided for the fluid.
Patent GB-998873-A (GB)
Title: Improvements in textile drafting apparatus
Inventor: MACKIE JOHN KAY PRINGLE
IPC: D01H5/40
Filed: 1961-06-13
Abstract: 998,873. Textile drafting apparatus. JAMES MACKIE & SONS Ltd. June 26, 1962 [June 13,1961], No. 21315/61. Heading D1D. In mechanism for controlling the draft in drafting apparatus according to variations in the thickness or weight of the incoming sliver which comprises a series of slidable members moved around a closed path between a sitting member controlled by the thickness or weight of the sliver and a transmitter for controlling the speed of the drafting apparatus, the movement of the transmitter in response to the setting of the slidable members initiates a relay to bring into action a power-operated device for adjusting a belt-shifting mechanism for a double-cone drive providing the speed control. As shown the transmitter is a roller 3 the movements of which is controlled as a drum 1 rotates by the positions of rods 2 which are set according to the thickness of the sliver as in Specification 880,871. The movement of the roller is transmitted by a pivoted lever 4 linked to a pivoted lever 6 with a forked end 11 for shifting a bell over apposed cones 8, 9. The roller 3 is carried by an arm 23 pivoted on the pivot 21 of the lever 4 and having an abutment oriface 24. The lever 4 has an extension 25 with an abutment surface urged into contact with the surface 24 by a counterweight 22 on an arm 20 of lever 4. The arm 23 has an adjustable bolt 29 which is the operating member for a sensitive switch 30 carried by the extension 25. Thus, as surface 24 moves away from the corresponding surface on the member 25 the switch is operated to energize a solenoid 31 of.which the plunger is connected to the end of arm 20; consequently, the pull of the counterweight is augmented to rock the lever 4 anticlockwise. When the arm 23 is rocked clockwise, the arm 4 is also rocked clockwise, the roller 3 being kept in contact with the rods 2 by the counterweight, the size of which can be reduced by the arrangement described.
Patent GB-1454338-A (GB)
Title: Disazo pigments and process for their manufacture
IPC: C09B33/147
Filed: 1974-05-14
Abstract: 1454338 Isopropylcarbonyl phenyl ester derivatives CIBA-GEIGY AG 14 May 1974 [16 May 1973] 21334/74 Heading C2C [Also in Division C4] 4 - Methoxy - 3 - aminobenzoic acid -4<SP>1</SP>- isopropoxy carbonyl - phenyl ester is preparedin a sequence of operations: 4-methoxy-3-nitrobenzoyl chloride is condensed with 4-hydroxy benzoic acid isopropyl ester. The resulting 4- methoxy - 3 - nitrobenzoic acid - 4<SP>1</SP> - isopropoxycarbonyl-phenyl ester is hydrogenated in ethanol/ Raney nickel to give 4-methoxy-3-aminobenzoic acid-4<SP>1</SP>-isopropoxy carbonyl-phenyl ester.
Patent GB-609714-A (GB)
Title: Corrosion-resistant valves
IPC: F16K27/02
Filed: 1944-11-01
Abstract: 609,714. Valves. STEVENS, A. H. (Pfaudler Co.). Nov. 1, 1944, No. 21353. [Class 135] In a valve for use in handling chemicals having a corrosion resisting lining 19 such as vitreous enamel or glass, the valve seat ring 20 of a corrosion-resistant material such as porcelain is provided with an outer inclined surface and is held between a corresponding shoulder 12 of the main valve casing 10 and a flanged part 28 to which the valve is connected, resilient gaskets 22, 30 of rubber or asbestos also being provided. The valve head 32, which may be provided with a seating ring 37, Fig. 4, of a high resistant material such as hard rubber, synthetic plastic or lead, is secured to a metal valve stem 33 having a resistant coating 44 by cement 34. The valve stem passes through a stuffing-box 17 and is adapted to be reciprocated by rotation of a screwed sleeve 55 in the head 54 of a bonnet 51 by a hand wheel 57. A smaller hand wheel 58 secured to the stem 33 by a pin 59 is provided for imparting a rotary grinding movement of the valve on its seat to clean off any grit or foreign substance when required. As shown in Fig. 7, the main valve casing part 72 may be connected to a part 83 to form a straight-through valve or a 90 degrees angle valve as indicated dotted. In this case, the valve member 77 seats on to the upper surface of seat ring 75 and has a throttling portion passing into the passageway, the other constructional features being the same as already described. In another modification, the invention is applied to a safety relief type of valve, the valve head in this case having a spherical surface.